Question

How long must a ladder be to reach the top of a 12-foot wall if the bottom of the ladder is placed 3 feet from the base of the wall

Answer 1

Answer:

12.37 ft

Step-by-step explanation:

Hypotenuse(c): the ladder

Cathetus: the wall (a=12) and the floor (b=3)

Equation:

$c^{2} =a^{2} +b^{2}$

$c^{2} =(12)^{2}+ (3)^{2} =144+9$

$c^{2} =153$

$c=\sqrt{153}$

$c=12.37$

The ladder is 12.37 feet long

Hope this helps

Answer 2

Answer: 13 feet

Step-by-step explanation: